Baby matteess



(No Model.)

L. KO S S.

, BABY MATTRESS; No. 321,983. Patented July 14, 1885.

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UNITED STATES PATENT OFFICE.

LUDWIG KOSS, OF BROOKLYN, NEV YORK.

BABY-MATTRESS.

SPECIFICATION forming part of Letters Patent No. 321,983, dated July 14, 1885.

(No model.)

To all whom; it may concern.-

Be it known that I, LUDWIG Koss, of Brooklyn, in the county of Kings and State of New mattress, Fig. 2, a vertical longitudinal section on line x x, Fig. l; and Fig. 3, a detail s vction showing the connection of the discharge-tube with the collecting vessel or bulb.

Similar letters of reference indicate corresponding parts.

A in the drawings represents a mattress for baby beds, and B a covering of rubber or other waterproof fabric, which is placed on top of the mattress. The mattress is provided, preferably at its center, with an opening, a, in which aspiral stiIening-spring, b, is arranged,

.that is attached to the mattress, and which spring serves to keep up the proper degree of resistance of the mattress around the opening a. The covering B is provided vertically above the mattress A with a downwardly-ex tending tube, d, which may be integral with the covering B or attached in a suitable manner thereto. The lower end of the tube d is provided with a metal collar, d', having interior thread, into which is screwed the threaded neck dt of a rubber bulb or other receptacle, C. Between a shoulder of the collar d and a shoulder of the neck d2 is interposed a rubber washer, d, by which the tight connection between the tube d and the bulb C is established. The water is drained off through the tube d to the receptacle or bulb C, which can be readily removed for being emptied and cleaned by being unscrewed from the tube d, and replaced after cleaning.

As the weight of the child depresses the middle part of the mattress, the water runs readily toward the draining-oit opening and is collected by the receptacle, so that the inattress is kept clean and dry.

For airing the mattress, the cover B is removed after the bulb is detached, the parts being readily replaced again for use.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination of a mattress having a ver tical opening and a spiral spring arranged in the opening, a water-proof covering having a downwardly-extending tube passing through said opening, and a detachable bulb or other receptacle attached to the tube, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

LUDVIG KOSS.

Vitnesses:

PAUL GoEPEL, SIDNEY MANN. 

